The list of things that make me feel old is sadly getting longer: that bald patch at the back of my head; dodgy eyesight; a growing interest in pension arrangements. I can now add another: visiting the Googleplex in Mountain View, California.

The headquarters of this ultra-successful company that now possesses one of the world’s most recognisable brand names - a name that has become a verb - feels like a cross between a university campus, an Ikea playpen and a multilingual reunion of Mensa on permanent dress-down Friday.

Matt Frei, BBC News